Generally, a download manager enables downloading of large files or multiples files in one session.Many web browsers, such as Internet Explorer 9, include a download manager.Stand-alone download managers also are available, including the Microsoft Download Manager.

if you do not have a download manager installed, and still want to download the file(s) you've chosen, please note:

You may not be able to download multiple files at the same time.In this case, you will have to download the files individually.(You would have the opportunity to download individual files on the "Thank you for downloading" page after completing your download.)

Files larger than 1 GB may take much longer to download and might not download correctly.

You might not be able to pause the active downloads or resume downloads that have failed.

The Microsoft Download Manager solves these potential problems.It gives you the ability to download multiple files at one time and download large files quickly and reliably.It also allows you to suspend active downloads and resume downloads that have failed.

Microsoft Lync is an enterprise-ready unified communications platform. Lync connects people everywhere, on Windows 8 and other devices, as part of their everyday productivity experience. Lync provides a consistent, single client experience for presence, instant messaging, voice, video and a great meeting experience. Lync 2013 supports multiparty HD video conferencing, modern “touch first” capabilities for fast and natural communications, and work anywhere scenarios that do not require a VPN for encryption. Lync 2013 users can connect to anyone on Skype, enabling rich communication with hundreds of millions of people around the world!

How it works

Work Anywhere
Lync allows users to communicate securely and stay connected with colleagues and customers, from virtually wherever they chose to work.

Lync Across Devices
Users can switch among devices as they choose based on their needs. Lync offers familiar and consistent user experience across PC, phone, browser and tablets.

Connected Experiences
Lync connects millions of people, their communications and the applications they use every day - together. Multiparty HD video conferencing brings life and expression to Lync Meetings.

Simpler to Manage
Lync is a dependable platform for all real-time communications. A single system reduces complexity in Enterprise IT.

Minimum Demo Requirements
The complete topology consists of 7 virtual machines that require a minimum of 24GB of RAM and a powerful dual core or any quad core host machine, and up to 150 Gb of disk space for the full topology.

A minimal Unified Communications Developer’s topology consisting of the DC virtual machine, the Lync Server 2013 Front End Edition virtual machine, the Exchange Server 2013 Unified Messaging Virtual Machine and the Terminal Services virtual machine can be run in 16GB of RAM.

Notes:
1. This trial is split over 3 download releases. The links for parts 2 and 3 are located below in the Additional Information section.
2. This trial software is intended for evaluation purposes or proof of concept prototyping only.
3. There is no product support for this trial. You are welcome to share your trial experience with others and to ask for advice by participating in the MSDN forums of Microsoft Lync and Microsoft Exchange’s developer forum on Technet. IT Pros can send their questions here.
4. The VHD set has an initial grace period of 10 days and can be activated for up to an additional 180 days. Look for instructions on how to activate the VHDs in the Quick Start Guide located on this download site.

Windows Server 2008 R2 or Windows Server 2012 Hyper-V is required to use this virtual machine. In addition to the system requirements for Windows Server 2008 R2 or Windows Server 2012 as described in the release notes, a 64-bit system with hardware-assisted virtualization enabled and data execution prevention (DEP) is required.

It is also recommended to ensure that you have a clean install of x64 edition of Windows Server 2008 R2 or Windows Server 2012 to be able to use the Hyper-V technology.

Prerequisites, installation steps, OS recommendations, and known issues of Hyper-V can be found here.

In order to use this evaluation package you will need to have Microsoft Hyper-V installed on a physical machine.

Hyper-V is available on Windows Server 2008 R2 or Windows Server 2012 and the details on how to install Hyper-V can be found here. Details of how to setup the VHD are included in the documentation that accompanies the product.

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